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/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef XMESAP_H
#define XMESAP_H
#include "GL/xmesa.h"
#include "mtypes.h"
#ifdef XFree86Server
#include "xm_image.h"
#endif
#include "state_tracker/st_context.h"
#include "state_tracker/st_public.h"
#include "pipe/p_thread.h"
extern pipe_mutex _xmesa_lock;
extern XMesaBuffer XMesaBufferList;
/**
* Visual inforation, derived from GLvisual.
* Basically corresponds to an XVisualInfo.
*/
struct xmesa_visual {
GLvisual mesa_visual; /* Device independent visual parameters */
XMesaDisplay *display; /* The X11 display */
#ifdef XFree86Server
GLint ColormapEntries;
GLint nplanes;
#else
XMesaVisualInfo visinfo; /* X's visual info (pointer to private copy) */
XVisualInfo *vishandle; /* Only used in fakeglx.c */
#endif
GLint BitsPerPixel; /* True bits per pixel for XImages */
GLboolean ximage_flag; /* Use XImage for back buffer (not pixmap)? */
};
/**
* Context info, derived from st_context.
* Basically corresponds to a GLXContext.
*/
struct xmesa_context {
struct st_context *st;
XMesaVisual xm_visual; /** pixel format info */
XMesaBuffer xm_buffer; /** current drawbuffer */
};
/**
* Types of X/GLX drawables we might render into.
*/
typedef enum {
WINDOW, /* An X window */
GLXWINDOW, /* GLX window */
PIXMAP, /* GLX pixmap */
PBUFFER /* GLX Pbuffer */
} BufferType;
/**
* Framebuffer information, derived from.
* Basically corresponds to a GLXDrawable.
*/
struct xmesa_buffer {
struct st_framebuffer *stfb;
GLboolean wasCurrent; /* was ever the current buffer? */
XMesaVisual xm_visual; /* the X/Mesa visual */
XMesaDrawable drawable; /* Usually the X window ID */
XMesaColormap cmap; /* the X colormap */
BufferType type; /* window, pixmap, pbuffer or glxwindow */
XMesaImage *tempImage;
unsigned long selectedEvents;/* for pbuffers only */
GLuint shm; /* X Shared Memory extension status: */
/* 0 = not available */
/* 1 = XImage support available */
/* 2 = Pixmap support available too */
#if defined(USE_XSHM) && !defined(XFree86Server)
XShmSegmentInfo shminfo;
#endif
XMesaGC gc; /* scratch GC for span, line, tri drawing */
/* GLX_EXT_texture_from_pixmap */
GLint TextureTarget; /** GLX_TEXTURE_1D_EXT, for example */
GLint TextureFormat; /** GLX_TEXTURE_FORMAT_RGB_EXT, for example */
GLint TextureMipmap; /** 0 or 1 */
struct xmesa_buffer *Next; /* Linked list pointer: */
};
/** cast wrapper */
static INLINE XMesaContext
xmesa_context(GLcontext *ctx)
{
return (XMesaContext) ctx->DriverCtx;
}
/** cast wrapper */
static INLINE XMesaBuffer
xmesa_buffer(GLframebuffer *fb)
{
struct st_framebuffer *stfb = (struct st_framebuffer *) fb;
return (XMesaBuffer) st_framebuffer_private(stfb);
}
extern void
xmesa_delete_framebuffer(struct gl_framebuffer *fb);
extern XMesaBuffer
xmesa_find_buffer(XMesaDisplay *dpy, XMesaColormap cmap, XMesaBuffer notThis);
extern void
xmesa_check_and_update_buffer_size(XMesaContext xmctx, XMesaBuffer drawBuffer);
extern void
xmesa_destroy_buffers_on_display(XMesaDisplay *dpy);
static INLINE GLuint
xmesa_buffer_width(XMesaBuffer b)
{
return b->stfb->Base.Width;
}
static INLINE GLuint
xmesa_buffer_height(XMesaBuffer b)
{
return b->stfb->Base.Height;
}
extern int
xmesa_check_for_xshm(XMesaDisplay *display);
#endif
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